#ifndef ERR
#define ERR
#include"stdafx.h"

using namespace std;

class err
{
public:
	static void err1(){
		cout<<"undefined error"<<endl;
	}
	static void err2(string message)
	{
		cout<<message<<endl;
           
	}
	static void err3(string message)
	{
		cout<<message<<endl;
                //exit(-1);
	}
};
#endif